Skip to content

Polymorphic Relation - Wrong Doc #8667

Open
@A-Corregidor

Description

@A-Corregidor

Describe the bug

Hi there!

Let's suppose a base Delivery model with 3 fields: id, deliverableType, and deliverableId.
If you follow the docs, you'll get this error when requesting some deliverable relations:

Request GET /deliveries?filter=whatever failed with status code 500. Error: ER_BAD_FIELD_ERROR: Unknown column 'deliverable' in 'field list'

This is caused by this part of code, as you're asking it to search on the corresponding datasource for the field "deliverable" which doesn't exist:

class Delivery extends Entity {
@hasOne(() => Deliverable, {polymorphic: true})
  deliverable: Deliverable;

deliverableType: string;
}

Instead, it should be like this (search deliverableId on deliverableType's model):

class Delivery extends Entity {
@hasOne(() => Deliverable, {polymorphic: true})
  deliverableId: string;

deliverableType: string;
id: string;
}

With that change, polymorphic relation is working as expected (assuming repositories are correctly configured)

Logs

No response

Additional information

No response

Reproduction

Not needed

Metadata

Metadata

Assignees

No one assigned

    Labels

    Type

    No type

    Projects

    No projects

    Milestone

    No milestone

    Relationships

    None yet

    Development

    No branches or pull requests

    Issue actions